To GM:
1. How are we doing in terms of administrative coverage for our Dragoons Rating?
2. How much of an impact will it make on rolls for arty support to pick up an elite gunner for the arty?
1) Look at the Dragoons Calculator in the TO&E. IIRC, you're at 100% necessary admin support, and you will be until the unit gets another ~28 members or so. Mostly what you're hiring administrators for at this point are the typeoplogy bonuses.
2) A single gunner? Not very much. The horrible thing about how multiple-person vehicle crews work is that you use the Driver's Piloting Rating...and then you use the WORST Gunnery Rating of all members of the vehicle's crew. So if you want a Gunnery of 2 on a vee,
every member of the crew needs a Gunnery of 2 or less. So a single gunner won't do a lot of good. But you're eventually going to need a lot of elite gunners if you want an elite artillery crew.